Special type of free service used for checking warranty and serial number of iPhone device.
It is easy to use the only thing your need to provide is the IMEI number. You will receive data consisting of serial number and warranty for your iPhone. Also info if your iPhone was refurbished.

How can you check the warranty and serial number for your iPhone?
1. Input *#06# on your iPhone just like a phone number. The IMEI number will appear.
2. type the IMEI number in the window below.
3. press "check IMEI"